High-level delegations from the United States and China are meeting in London to try and shore up a fragile truce in a trade dispute that has roiled the global economy.

President Donald Trump held a long-awaited phone call Thursday with China’s Xi Jinping, a person familiar with the matter said, as the two leaders tussle over trade policy.

President Donald Trump and Chinese President Xi Jinping held a phone call Thursday amid ongoing tensions between the two superpowers — with a new in-person meeting planned soon.